<template>
<div class="app-container">
<el-form label-width="120px">
<el-form-item label="信息描述">
<el-tag type="info">excel模版说明</el-tag>
<el-tag>
<i class="el-icon-download"/>
<a :href="'/static/1.xlsx'">点击下载模版</a>
</el-tag>
</el-form-item>
<el-form-item label="选择Excel">
<el-upload
ref="upload"
:auto-upload="false"
:on-success="fileUploadSuccess"
:on-error="fileUploadError"
:disabled="importBtnDisabled"
:limit="1"
:action="BASE_API+'/eduservice/subject/addSubject'"
name="file"
accept="application/vnd.ms-excel">
<el-button slot="trigger" size="small" type="primary">选取文件</el-button>
<el-button
:loading="loading"
style="margin-left: 10px;"
size="small"
type="success"
@click="submitUpload">上传到服务器</el-button>
</el-upload>
</el-form-item>
</el-form>
</div>
</template>

<script>
// import { defineComponent } from '@vue/composition-api'

export default {
   data(){
       return{
        BASE_API: process.env.BASE_API, // 接口API地址
        importBtnDisabled: false, // 按钮是否禁用,
        loading: false
       }
   },
   created(){

   },
   methods:{
       submitUpload(){
            this.importBtnDisabled = true
            this.loading = true
            this.$refs.upload.submit()
       },

       fileUploadSuccess(response){
           this.loading = false
            this.$message({
                type: 'success',
                message:'添加课程分类成功'
            })
            this.$router.push({path:'/subject/list'})
       },

       fileUploadError(){
            this.loading = false
            this.$message({
                type: 'error',
                message: '添加课程分类失败'
            })
       }
   }
}
</script>
